Does it change in any way if you swerve? If so, does it get better in one direction and worse in the other?

 

Sorry to dig up such an old thread, but I'm having this problem and it's driving me nuts.



What does this indicate? Mine gets better if I'm turned left even slightly, and worse if I'm turning right or going straight.

 

It will be your front drive shaft CV, at the transfer case end.

 

hello and good morning,

colinzj: doesn't change in pitch or tone if i do. The only thing I found to affect it is speeding up (lowering the tone) or slowing down below 30 mph (goes away)

patience: is the front drive shaft serviceable? I know the rear drive shaft is not.

 

If it's the front shaft (and it does sound like it probably is), Dorman has a service kit for the CV.

 

ok ill look see if i can find some more info about it. thank you for your replies.

if it is the front drive shaft/cv, hopefully the dealer will replace it. They have been really good about it and not giving any trouble with the repairs though.

 

Yes it is serviceable. Hop under you car and check if there is grease on the floor pan directly above your CV, generally a sign that the CV is gone.

 

thats actually kind of funny...when i took it back after getting new tires, they threw it up on the lift while i was there and i got a decent look under the jeep. while the mechanic was checking the wheels, my dad and I were checking everything else and he noticed a bit of liquid in that very area. When he pointed that out to the mechanic, he said it was spill over from when they changed the oil. Ill see if i can find some time to jack it up tomorrow and give it a look.

 

I just posted about the very same thing. Goes to show, search before posting...

 

lol ive been lurking on these forums for about a month now. its how i learned about all the maintenance items i should take care of

your problem may be different then mine though. dose your noise only start at a certain speed?

also I have a few questions regarding the front drive shaft.

1. Will I be able to remove the front drive shaft and still be able to drive the jeep? it will only be for test purposes and if i decided to remove it, will put it back in the same day. I believe i have the NV245 TC.

2. Ive been looking for the front propeller shaft (what its called in the service manual) online and keep coming up with one that is supposedly interchange-able with the jeep liberty. dose anyone have any insight on this?

 

Good morning everyone,

So just wanted to give an update. I took the jeep to a local mechanic shop and had one of the mechanics do a ride along with me. I explained the entire situation to him and when he heard the sound, decided to throw it up on the lift and give it a once over. With the jeep on the lift, and someone behind the wheel, they ran it up to the 35-40 mph range and discovered that it was exactly what Patience said. The noise came from the front drive shaft joint to the transfer case. We checked the shaft for any play and there was none. While it was up on the lift, the mechanic gave a listen to the front/rear diff, the front axle CV joins and the transfer case and said they all sounded just fine.

It only cost me $20 for the lift charge. Well spent imo, instead of laying down on the cold October ground lol.

So Im going to call the dealer tomorrow and hopefully convince them to change the whole drive shaft.

Special thanks to Patience for guiding me in the right direction. Once this is fixed, I can enjoy my jeep worry free :2thumbsup: (aside from the fact that the DVD drive isent working, but i have a new drive otw and gonna just swap it out)

 

Hello again everyone,

After speaking with the dealer they decided to change the drive shaft. Dropped the jeep off on thursday and got it back friday afternoon. Took a quick peek under the jeep just to make sure, and they did indeed change the drive shaft. Idk if its brand new, or a refurbished one though.

Ive done about 25 miles total driving since getting it back, about 40% of the time sticking to the 35-40 mph range in an attempt to feel the vibration again...and its gone! I can finally enjoy the 4.7 V8 w/o worry!

Just wanted to post the final resolution to my problem, in case anyone else runs into this same problem.

 

Glad it worked out for you!

 

Me too! I find myself turning down the radio just so I can listen to the engine as I accelerate now that the hum/vibration is gone lol

 

Gotcha, I've got two front end noises to sort out at the moment but that's the new one. What's the best way to know for sure if it's the bearing?

 

The noise you are experiencing is most likely a bad wheel bearing. The reason the the noise gets better when you turn to the left is because you are shifting the weight off the bad bearing and throwing it to the good one. If the noise lessens turning left, it's your left wheel bearing that's the problem. Turning left shifts the trucks weight to the right and vice versa.

 

You may also be able to verify if it's the bearing(s) by jacking the front end up and spinning the wheel(s) by hand and listen for any noise. Also, grab the top and bottom of the wheel, alternately moving the wheel in and out and see if there is any play. These things are not like the old days when we had to "pack" the bearings and manually adjust the bearing/race cleanances....they're all sealed these days but, if bad. will still get play in them. Any play is too much on these newer ones.

 

I just posted about a similar issue. Glad this came up, I'm going to look into the front drive shaft. Mine gets louder when I turn, but it is not wheel bearings of that I am sure.

 

Did you ever figure it out? I changed my propeller shaft cv joint last year and I just replaced my drivers left front wheel bearing and I still get a rubbing, grinding noise with vibration. It only happens when I’m driving straight or swerving to the right putting the load/pressure on the drivers front wheel. If I swerve to the left slightly the sound disappears completely.
let me know if you can if you figured out the problem. Thanks

 

Did your noise get worse when applying the brakes? I replaced front brakes and rotors and two new front hubs and still have noise. Worse when applying the brakes. Trying to pin it down myself before taking it to a garage.

Thanks, Rick

 

I think they might be referencing wheel bearings, I had one going out and when swerving left and right the noise would go on and off...

If you're lifted with bigger tires and especially if running spacers I'd recommend a wheel hub with a lifetime warranty, Mevotech recently came out with one, available on RA. Its a few bucks more but I killed one of their eco line ones in 13 month (just out of warranty), although the other one is still doing fine. I believe I replaced it with a cheapo WJB which has also been fine for a year or so..

Bad CV on the front drive shaft sounded like a robot being abused, only when accelerating.

 

Did you figure this out? Im having the exact same thing going on and cant figure it out.

 

It's been 9 years, hopefully they figured it out by now.

Mine was indeed the wheel bearings, they had slowly been dying since before I had owned the Jeep. Removing the front driveshaft makes a WK not move because of how the tcase works, it's basically an open diff in 4hi.

 

It's been 9 years, hopefully they figured it out by now.

Mine was indeed the wheel bearings, they had slowly been dying since before I had owned the Jeep. Removing the front driveshaft makes a WK not move because of how the tcase works, it's basically an open diff in 4hi.

It's been 9 years, hopefully they figured it out by now.

Mine was indeed the wheel bearings, they had slowly been dying since before I had owned the Jeep. Removing the front driveshaft makes a WK not move because of how the tcase works, it's basically an open diff in 4hi.

Lol 9 years I didn't see that